src/w32term.h

   1 /* Definitions and headers for communication under the Win32 API.
   2    Copyright (C) 1995 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Added by Kevin Gallo */
  22
  23 #include <win32.h>
  24
  25 /* The class of this X application.  */
  26 #define EMACS_CLASS "Emacs"
  27 \f
  28 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  29 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  30
  31 #define FONT_WIDTH(f)   ((f)->tm.tmAveCharWidth)
  32 #define FONT_HEIGHT(f)  ((f)->tm.tmHeight)
  33 #define FONT_BASE(f)    ((f)->tm.tmAscent)
  34
  35 #define CHECK_W32_FRAME(f, frame)               \
  36   if (NILP (frame))                             \
  37     f = selected_frame;                         \
  38   else                                          \
  39     {                                           \
  40       CHECK_LIVE_FRAME (frame, 0);              \
  41       f = XFRAME (frame);                       \
  42     }                                           \
  43   if (! FRAME_W32_P (f))
  44
  45 /* Indicates whether we are in the readsocket call and the message we
  46    are processing in the current loop */
  47
  48 extern MSG CurMsg;
  49 extern BOOL bUseDflt;
  50
  51 extern struct frame *x_window_to_frame ();
  52
  53 enum text_cursor_kinds {
  54   filled_box_cursor, hollow_box_cursor, bar_cursor
  55 };
  56
  57 /* This data type is used for the font_table field
  58    of struct w32_display_info.  */
  59
  60 struct font_info
  61 {
  62   XFontStruct *font;
  63   char *name;
  64 };
  65
  66 /* Structure recording bitmaps and reference count.
  67    If REFCOUNT is 0 then this record is free to be reused.  */
  68
  69 struct w32_bitmap_record
  70 {
  71   Pixmap pixmap;
  72   char *file;
  73   HINSTANCE hinst; /* Used to load the file */
  74   int refcount;
  75   /* Record some info about this pixmap.  */
  76   int height, width, depth;
  77 };
  78
  79 /* Palette book-keeping stuff for mapping requested colors into the
  80    system palette.  Keep a ref-counted list of requested colors and
  81    regenerate the app palette whenever the requested list changes. */
  82
  83 extern Lisp_Object Vw32_enable_palette;
  84
  85 struct w32_palette_entry {
  86   struct w32_palette_entry * next;
  87   PALETTEENTRY entry;
  88 #if 0
  89   unsigned refcount;
  90 #endif
  91 };
  92
  93 extern void w32_regenerate_palette(struct frame *f);
  94
  95 \f
  96 /* For each display (currently only one on w32), we have a structure that
  97    records information about it.  */
  98
  99 struct w32_display_info
 100 {
 101   /* Chain of all w32_display_info structures.  */
 102   struct w32_display_info *next;
 103   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 104      The same cons cell also appears in x_display_name_list.  */
 105   Lisp_Object name_list_element;
 106   /* Number of frames that are on this display.  */
 107   int reference_count;
 108   /* Number of planes on this screen.  */
 109   int n_planes;
 110   /* Number of bits per pixel on this screen.  */
 111   int n_cbits;
 112   /* Dimensions of this screen.  */
 113   int height, width;
 114   int height_in,width_in;
 115   /* Mask of things that cause the mouse to be grabbed.  */
 116   int grabbed;
 117   /* The root window of this screen.  */
 118   Window root_window;
 119   /* The cursor to use for vertical scroll bars.  */
 120   Cursor vertical_scroll_bar_cursor;
 121
 122   /* color palette information */
 123   int has_palette;
 124   struct w32_palette_entry * color_list;
 125   unsigned num_colors;
 126   HPALETTE palette;
 127
 128   /* deferred action flags checked when starting frame update */
 129   int regen_palette;
 130
 131   /* A table of all the fonts we have already loaded.  */
 132   struct font_info *font_table;
 133
 134   /* The current capacity of x_font_table.  */
 135   int font_table_size;
 136
 137   /* These variables describe the range of text currently shown
 138      in its mouse-face, together with the window they apply to.
 139      As long as the mouse stays within this range, we need not
 140      redraw anything on its account.  */
 141   int mouse_face_beg_row, mouse_face_beg_col;
 142   int mouse_face_end_row, mouse_face_end_col;
 143   int mouse_face_past_end;
 144   Lisp_Object mouse_face_window;
 145   int mouse_face_face_id;
 146
 147   /* 1 if a mouse motion event came and we didn't handle it right away because
 148      gc was in progress.  */
 149   int mouse_face_deferred_gc;
 150
 151   /* FRAME and X, Y position of mouse when last checked for
 152      highlighting.  X and Y can be negative or out of range for the frame.  */
 153   struct frame *mouse_face_mouse_frame;
 154   int mouse_face_mouse_x, mouse_face_mouse_y;
 155
 156   /* Nonzero means defer mouse-motion highlighting.  */
 157   int mouse_face_defer;
 158
 159   char *w32_id_name;
 160
 161   /* The number of fonts actually stored in w32_font_table.
 162      font_table[n] is used and valid iff 0 <= n < n_fonts.
 163      0 <= n_fonts <= font_table_size.  */
 164   int n_fonts;
 165
 166   /* Pointer to bitmap records.  */
 167   struct w32_bitmap_record *bitmaps;
 168
 169   /* Allocated size of bitmaps field.  */
 170   int bitmaps_size;
 171
 172   /* Last used bitmap index.  */
 173   int bitmaps_last;
 174
 175   /* The frame (if any) which has the window that has keyboard focus.
 176      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 177      that a mere EnterNotify event can set this; if you need to know the
 178      last frame specified in a FocusIn or FocusOut event, use
 179      w32_focus_event_frame.  */
 180   struct frame *w32_focus_frame;
 181
 182   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 183      separate from w32_focus_frame, because whether or not LeaveNotify
 184      events cause us to lose focus depends on whether or not we have
 185      received a FocusIn event for it.  */
 186   struct frame *w32_focus_event_frame;
 187
 188   /* The frame which currently has the visual highlight, and should get
 189      keyboard input (other sorts of input have the frame encoded in the
 190      event).  It points to the focus frame's selected window's
 191      frame.  It differs from w32_focus_frame when we're using a global
 192      minibuffer.  */
 193   struct frame *w32_highlight_frame;
 194 };
 195
 196 /* This is a chain of structures for all the displays currently in use.  */
 197 extern struct w32_display_info one_w32_display_info;
 198
 199 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 200    one for each element of w32_display_list and in the same order.
 201    NAME is the name of the frame.
 202    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 203 extern Lisp_Object w32_display_name_list;
 204
 205 extern struct w32_display_info *x_display_info_for_display ();
 206 extern struct w32_display_info *x_display_info_for_name ();
 207
 208 extern struct w32_display_info *w32_term_init ();
 209 \f
 210 /* Each W32 frame object points to its own struct w32_display object
 211    in the output_data.w32 field.  The w32_display structure contains all
 212    the information that is specific to W32 windows.  */
 213
 214 struct w32_output
 215 {
 216   /* Original palette (used to deselect real palette after drawing) */
 217   HPALETTE old_palette;
 218
 219   /* Position of the W32 window (x and y offsets in root window).  */
 220   int left_pos;
 221   int top_pos;
 222
 223   /* Border width of the W32 window as known by the window system.  */
 224   int border_width;
 225
 226   /* Size of the W32 window in pixels.  */
 227   int pixel_height, pixel_width;
 228
 229   /* Height of a line, in pixels.  */
 230   int line_height;
 231
 232   /* Width of the internal border.  This is a line of background color
 233      just inside the window's border.  When the frame is selected,
 234      a highlighting is displayed inside the internal border.  */
 235   int internal_border_width;
 236
 237   /* The window used for this frame.
 238      May be zero while the frame object is being created
 239      and the window has not yet been created.  */
 240   Window window_desc;
 241
 242   /* The window that is the parent of this window.
 243      Usually this is a window that was made by the window manager,
 244      but it can be the root window, and it can be explicitly specified
 245      (see the explicit_parent field, below).  */
 246   Window parent_desc;
 247
 248   XFontStruct *font;
 249
 250   /* Pixel values used for various purposes.
 251      border_pixel may be -1 meaning use a gray tile.  */
 252   unsigned long background_pixel;
 253   unsigned long foreground_pixel;
 254   unsigned long cursor_pixel;
 255   unsigned long border_pixel;
 256   unsigned long mouse_pixel;
 257   unsigned long cursor_foreground_pixel;
 258
 259   /* Descriptor for the cursor in use for this window.  */
 260   Cursor text_cursor;
 261   Cursor nontext_cursor;
 262   Cursor modeline_cursor;
 263   Cursor cross_cursor;
 264
 265   /* Flag to set when the window needs to be completely repainted.  */
 266   int needs_exposure;
 267
 268   /* What kind of text cursor is drawn in this window right now?
 269      (If there is no cursor (phys_cursor_x < 0), then this means nothing.)  */
 270   enum text_cursor_kinds current_cursor;
 271
 272   /* What kind of text cursor should we draw in the future?
 273      This should always be filled_box_cursor or bar_cursor.  */
 274   enum text_cursor_kinds desired_cursor;
 275
 276   /* Width of bar cursor (if we are using that).  */
 277   int cursor_width;
 278
 279   DWORD dwStyle;
 280
 281   /* The size of the extra width currently allotted for vertical
 282      scroll bars, in pixels.  */
 283   int vertical_scroll_bar_extra;
 284
 285   /* Table of parameter faces for this frame.  Any resources (pixel
 286      values, fonts) referred to here have been allocated explicitly
 287      for this face, and should be freed if we change the face.  */
 288   struct face **param_faces;
 289   int n_param_faces;
 290
 291   /* Table of computed faces for this frame.  These are the faces
 292      whose indexes go into the upper bits of a glyph, computed by
 293      combining the parameter faces specified by overlays, text
 294      properties, and what have you.  The resources mentioned here
 295      are all shared with parameter faces.  */
 296   struct face **computed_faces;
 297   int n_computed_faces;         /* How many are valid */
 298   int size_computed_faces;      /* How many are allocated */
 299
 300   /* This is the gravity value for the specified window position.  */
 301   int win_gravity;
 302
 303   /* The geometry flags for this window.  */
 304   int size_hint_flags;
 305
 306   /* This is the Emacs structure for the display this frame is on.  */
 307   /* struct w32_display_info *display_info; */
 308
 309   /* Nonzero means our parent is another application's window
 310      and was explicitly specified.  */
 311   char explicit_parent;
 312
 313   /* Nonzero means tried already to make this frame visible.  */
 314   char asked_for_visible;
 315 };
 316
 317 /* Get at the computed faces of an X window frame.  */
 318 #define FRAME_PARAM_FACES(f) ((f)->output_data.w32->param_faces)
 319 #define FRAME_N_PARAM_FACES(f) ((f)->output_data.w32->n_param_faces)
 320 #define FRAME_DEFAULT_PARAM_FACE(f) (FRAME_PARAM_FACES (f)[0])
 321 #define FRAME_MODE_LINE_PARAM_FACE(f) (FRAME_PARAM_FACES (f)[1])
 322
 323 #define FRAME_COMPUTED_FACES(f) ((f)->output_data.w32->computed_faces)
 324 #define FRAME_N_COMPUTED_FACES(f) ((f)->output_data.w32->n_computed_faces)
 325 #define FRAME_SIZE_COMPUTED_FACES(f) ((f)->output_data.w32->size_computed_faces)
 326 #define FRAME_DEFAULT_FACE(f) ((f)->output_data.w32->computed_faces[0])
 327 #define FRAME_MODE_LINE_FACE(f) ((f)->output_data.w32->computed_faces[1])
 328
 329 /* Return the window associated with the frame F.  */
 330 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 331
 332 #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.w32->foreground_pixel)
 333 #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.w32->background_pixel)
 334 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 335 #define FRAME_INTERNAL_BORDER_WIDTH(f) ((f)->output_data.w32->internal_border_width)
 336
 337 /* This gives the w32_display_info structure for the display F is on.  */
 338 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 339
 340 /* These two really ought to be called FRAME_PIXEL_{WIDTH,HEIGHT}.  */
 341 #define PIXEL_WIDTH(f) ((f)->output_data.w32->pixel_width)
 342 #define PIXEL_HEIGHT(f) ((f)->output_data.w32->pixel_height)
 343 #define FRAME_LINE_HEIGHT(f) ((f)->output_data.w32->line_height)
 344
 345 #define FRAME_DESIRED_CURSOR(f) ((f)->output_data.w32->desired_cursor)
 346
 347 \f
 348 /* W32-specific scroll bar stuff.  */
 349
 350 /* We represent scroll bars as lisp vectors.  This allows us to place
 351    references to them in windows without worrying about whether we'll
 352    end up with windows referring to dead scroll bars; the garbage
 353    collector will free it when its time comes.
 354
 355    We use struct scroll_bar as a template for accessing fields of the
 356    vector.  */
 357
 358 struct scroll_bar {
 359
 360   /* These fields are shared by all vectors.  */
 361   EMACS_INT size_from_Lisp_Vector_struct;
 362   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 363
 364   /* The window we're a scroll bar for.  */
 365   Lisp_Object window;
 366
 367   /* The next and previous in the chain of scroll bars in this frame.  */
 368   Lisp_Object next, prev;
 369
 370   /* The window representing this scroll bar.  Since this is a full
 371      32-bit quantity, we store it split into two 32-bit values.  */
 372   Lisp_Object w32_window_low, w32_window_high;
 373
 374   /* The position and size of the scroll bar in pixels, relative to the
 375      frame.  */
 376   Lisp_Object top, left, width, height;
 377
 378   /* The starting and ending positions of the handle, relative to the
 379      handle area (i.e. zero is the top position, not
 380      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 381      hasn't been drawn yet.
 382
 383      These are not actually the locations where the beginning and end
 384      are drawn; in order to keep handles from becoming invisible when
 385      editing large files, we establish a minimum height by always
 386      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 387      where they would be normally; the bottom and top are in a
 388      different co-ordinate system.  */
 389   Lisp_Object start, end;
 390
 391   /* If the scroll bar handle is currently being dragged by the user,
 392      this is the number of pixels from the top of the handle to the
 393      place where the user grabbed it.  If the handle isn't currently
 394      being dragged, this is Qnil.  */
 395   Lisp_Object dragging;
 396 };
 397
 398 /* The number of elements a vector holding a struct scroll_bar needs.  */
 399 #define SCROLL_BAR_VEC_SIZE                                     \
 400   ((sizeof (struct scroll_bar)                                  \
 401     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 402    / sizeof (Lisp_Object))
 403
 404 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 405 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 406
 407
 408 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 409 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 410
 411 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 412 #define SCROLL_BAR_UNPACK(low, high, int32) \
 413   (XSETINT ((low),   (int32)        & 0xffff), \
 414    XSETINT ((high), ((int32) >> 16) & 0xffff))
 415
 416
 417 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 418 #define SCROLL_BAR_W32_WINDOW(ptr) \
 419   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 420
 421 /* Store a window id in a struct scroll_bar.  */
 422 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 423   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 424
 425
 426 /* Return the outside pixel height for a vertical scroll bar HEIGHT
 427    rows high on frame F.  */
 428 #define VERTICAL_SCROLL_BAR_PIXEL_HEIGHT(f, height) \
 429   ((height) * (f)->output_data.w32->line_height)
 430
 431 /* Return the inside width of a vertical scroll bar, given the outside
 432    width.  */
 433 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(width) \
 434   ((width) - VERTICAL_SCROLL_BAR_LEFT_BORDER - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 435
 436 /* Return the length of the rectangle within which the top of the
 437    handle must stay.  This isn't equivalent to the inside height,
 438    because the scroll bar handle has a minimum height.
 439
 440    This is the real range of motion for the scroll bar, so when we're
 441    scaling buffer positions to scroll bar positions, we use this, not
 442    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 443 #define VERTICAL_SCROLL_BAR_TOP_RANGE(height) \
 444   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 445
 446 /* Return the inside height of vertical scroll bar, given the outside
 447    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 448 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(height) \
 449   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 450
 451
 452 /* Border widths for scroll bars.
 453
 454    Scroll bar windows don't have any borders; their border width is
 455    set to zero, and we redraw borders ourselves.  This makes the code
 456    a bit cleaner, since we don't have to convert between outside width
 457    (used when relating to the rest of the screen) and inside width
 458    (used when sizing and drawing the scroll bar window itself).
 459
 460    The handle moves up and down/back and forth in a rectangle inset
 461    from the edges of the scroll bar.  These are widths by which we
 462    inset the handle boundaries from the scroll bar edges.  */
 463 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 464 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 465 #define VERTICAL_SCROLL_BAR_TOP_BORDER (0)
 466 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (0)
 467
 468 /* Minimum lengths for scroll bar handles, in pixels.  */
 469 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (0)
 470
 471 \f
 472 /* Manipulating pixel sizes and character sizes.
 473    Knowledge of which factors affect the overall size of the window should
 474    be hidden in these macros, if that's possible.
 475
 476    Return the upper/left pixel position of the character cell on frame F
 477    at ROW/COL.  */
 478 #define CHAR_TO_PIXEL_ROW(f, row) \
 479   ((f)->output_data.w32->internal_border_width \
 480    + (row) * (f)->output_data.w32->line_height)
 481 #define CHAR_TO_PIXEL_COL(f, col) \
 482   ((f)->output_data.w32->internal_border_width \
 483    + (col) * FONT_WIDTH ((f)->output_data.w32->font))
 484
 485 /* Return the pixel width/height of frame F if it has
 486    WIDTH columns/HEIGHT rows.  */
 487 #define CHAR_TO_PIXEL_WIDTH(f, width) \
 488   (CHAR_TO_PIXEL_COL (f, width) \
 489    + (f)->output_data.w32->vertical_scroll_bar_extra \
 490    + (f)->output_data.w32->internal_border_width)
 491 #define CHAR_TO_PIXEL_HEIGHT(f, height) \
 492   (CHAR_TO_PIXEL_ROW (f, height) \
 493    + (f)->output_data.w32->internal_border_width)
 494
 495
 496 /* Return the row/column (zero-based) of the character cell containing
 497    the pixel on FRAME at ROW/COL.  */
 498 #define PIXEL_TO_CHAR_ROW(f, row) \
 499   (((row) - (f)->output_data.w32->internal_border_width) \
 500    / (f)->output_data.w32->line_height)
 501 #define PIXEL_TO_CHAR_COL(f, col) \
 502   (((col) - (f)->output_data.w32->internal_border_width) \
 503    / FONT_WIDTH ((f)->output_data.w32->font))
 504
 505 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
 506    frame F?  */
 507 #define PIXEL_TO_CHAR_WIDTH(f, width) \
 508   (PIXEL_TO_CHAR_COL (f, ((width) \
 509                           - (f)->output_data.w32->internal_border_width \
 510                           - (f)->output_data.w32->vertical_scroll_bar_extra)))
 511 #define PIXEL_TO_CHAR_HEIGHT(f, height) \
 512   (PIXEL_TO_CHAR_ROW (f, ((height) \
 513                           - (f)->output_data.w32->internal_border_width)))
 514 \f
 515 /* Interface to the face code functions.  */
 516
 517 /* Create the first two computed faces for a frame -- the ones that
 518    have GC's.  */
 519 extern void init_frame_faces (/* FRAME_PTR */);
 520
 521 /* Free the resources for the faces associated with a frame.  */
 522 extern void free_frame_faces (/* FRAME_PTR */);
 523
 524 /* Given a computed face, find or make an equivalent display face
 525    in face_vector, and return a pointer to it.  */
 526 extern struct face *intern_face (/* FRAME_PTR, struct face * */);
 527
 528 /* Given a frame and a face name, return the face's ID number, or
 529    zero if it isn't a recognized face name.  */
 530 extern int face_name_id_number (/* FRAME_PTR, Lisp_Object */);
 531
 532 /* Return non-zero if FONT1 and FONT2 have the same size bounding box.
 533    We assume that they're both character-cell fonts.  */
 534 extern int same_size_fonts (/* XFontStruct *, XFontStruct * */);
 535
 536 /* Recompute the GC's for the default and modeline faces.
 537    We call this after changing frame parameters on which those GC's
 538    depend.  */
 539 extern void recompute_basic_faces (/* FRAME_PTR */);
 540
 541 /* Return the face ID associated with a buffer position POS.  Store
 542    into *ENDPTR the next position at which a different face is
 543    needed.  This does not take account of glyphs that specify their
 544    own face codes.  F is the frame in use for display, and W is a
 545    window displaying the current buffer.
 546
 547    REGION_BEG, REGION_END delimit the region, so it can be highlighted.  */
 548 extern int compute_char_face (/* FRAME_PTR frame,
 549                                  struct window *w,
 550                                  int pos,
 551                                  int region_beg, int region_end,
 552                                  int *endptr */);
 553 /* Return the face ID to use to display a special glyph which selects
 554    FACE_CODE as the face ID, assuming that ordinarily the face would
 555    be BASIC_FACE.  F is the frame.  */
 556 extern int compute_glyph_face (/* FRAME_PTR, int */);
 557
 558 extern void w32_fill_rect ();
 559 extern void w32_clear_window ();
 560
 561 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 562 { \
 563     RECT rect; \
 564     rect.left = x; \
 565     rect.top = y; \
 566     rect.right = x + nx; \
 567     rect.bottom = y + ny; \
 568     w32_fill_rect (f,hdc,pix,&rect); \
 569 }
 570
 571 #define w32_clear_rect(f,hdc,lprect) \
 572 w32_fill_rect (f,hdc,f->output_data.w32->background_pixel,lprect)
 573
 574 #define w32_clear_area(f,hdc,x,y,nx,ny) \
 575 w32_fill_area (f,hdc,f->output_data.w32->background_pixel,x,y,nx,ny)
 576
 577 extern XFontStruct *w32_load_font ();
 578 extern void w32_unload_font ();
 579
 580 #define WM_EMACS_START                 (WM_USER + 1)
 581 #define WM_EMACS_KILL                  (WM_EMACS_START + 0x00)
 582 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 0x01)
 583 #define WM_EMACS_DONE                  (WM_EMACS_START + 0x02)
 584 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 0x03)
 585 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 0x04)
 586 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 0x05)
 587 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 0x06)
 588 #define WM_EMACS_END                   (WM_EMACS_START + 0x10)
 589
 590 typedef struct {
 591   HWND hwndAfter;
 592   int x;
 593   int y;
 594   int cx;
 595   int cy;
 596   int flags;
 597 } W32WindowPos;
 598
 599 #define WND_X_UNITS_INDEX      (0)
 600 #define WND_Y_UNITS_INDEX      (4)
 601 #define WND_BACKGROUND_INDEX   (8)
 602
 603 #define WND_LAST_INDEX      (16)
 604 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 605
 606 extern DWORD dwWinThreadId;
 607 extern HANDLE hWinThread;
 608 extern DWORD dwMainThreadId;
 609 extern HANDLE hMainThread;
 610
 611 typedef struct W32Msg {
 612     MSG msg;
 613     DWORD dwModifiers;
 614     RECT rect;
 615 } W32Msg;
 616
 617 extern CRITICAL_SECTION critsect;
 618
 619 extern void init_crit ();
 620 extern void delete_crit ();
 621
 622 #define enter_crit() EnterCriticalSection (&critsect)
 623 #define leave_crit() LeaveCriticalSection (&critsect)
 624
 625 extern void select_palette (struct frame * f, HDC hdc);
 626 extern void deselect_palette (struct frame * f, HDC hdc);
 627 extern HDC get_frame_dc (struct frame * f);
 628 extern int release_frame_dc (struct frame * f, HDC hDC);
 629
 630 extern BOOL get_next_msg ();
 631 extern BOOL post_msg ();
 632 extern void wait_for_sync ();
 633
 634 extern BOOL parse_button ();
 635
 636 /* Keypad command key support.  W32 doesn't have virtual keys defined
 637    for the function keys on the keypad (they are mapped to the standard
 638    fuction keys), so we define our own.  */
 639 #define VK_NUMPAD_BEGIN         0x92
 640 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 641 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 642 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 643 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 644 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 645 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 646 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 647 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 648 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 649 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 650 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 651 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 652
 653 #ifndef VK_LWIN
 654 /* Older compiler environments don't have these defined.  */
 655 #define VK_LWIN                 0x5B
 656 #define VK_RWIN                 0x5C
 657 #define VK_APPS                 0x5D
 658 #endif